{"refrec":{"BRefID":231134,"RR":"<b>Middag, R.; de Baar, H.J.W.; Laan, P.; Huhn, O.</b> (2012). The effects of continental margins and water mass circulation on the distribution of dissolved aluminum and manganese in Drake Passage. <i>J. Geophys. Res. 117</i>. <a href=\"http://dx.doi.org/10.1029/2011JC007434\" target=\"_blank\">dx.doi.org/10.1029/2011JC007434</a>","BEntID":222846,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Geophys. Res. 117</i>. <a href=\"https://dx.doi.org/10.1029/2011JC007434\" target=\"_blank\">https://dx.doi.org/10.1029/2011JC007434</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Middag, R.; de Baar, H.J.W.; Laan, P.; Huhn, O.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Middag, R. <i>et al.</i>","Englishabstract":"A total of 232 samples were analyzed for concentrations of dissolved aluminum ([Al]) and manganese ([Mn]) in Drake Passage. Both [Al] and [Mn] were extremely low (similar to 0.3 and 0.1 nM, respectively) in the surface layer of the middle Drake Passage, most likely due to limited input and biological uptake/scavenging. Elevated [Al] (>14 nM) and [Mn] (>2 nM) over the South American continental shelf are related to land run-off, whereas elevated concentrations (>1 nM and >2 nM, respectively) near the Antarctic Peninsula are most likely related to sediment re-suspension. Re-suspension of sedimentary particles and pore waters influences the distribution of [Al] and [Mn] over the continental slopes on both sides of Drake Passage. The influence of the continental margins and accumulated dust input potentially explains the higher [Al] observed eastward in the Atlantic section of the Southern Ocean. In the northern Drake Passage, elevated [Al] (similar to 0.8 nM) and [Mn] (similar to 0.3 nM) near the seafloor are most likely the result of bottom sediment re-suspension by the relatively strong currents. In the deep southern Drake Passage sediment re-suspension associated with the inflow of Weddell Sea Deep Water appears to cause elevated [Al] (>1 nM) and [Mn] (similar to 0.4 nM). In the deep northern Drake Passage, North Atlantic Deep Water brings in elevated [Al] and Southeast Pacific Deep Slope Water brings in the signature of Pacific hydrothermal vents. Elevated [Mn] and delta He-3 were correlated in this water layer and are most likely originating from the volcanically active ridges in the Pacific Ocean.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The effects of continental margins and water mass circulation on the distribution of dissolved aluminum and manganese in Drake Passage","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2014-06-06","DateCreate":"2013-12-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000299708700001","VABBcode":null,"OpenAcc":1,"DOI":"10.1029/2011JC007434"},"refs":null,"anarec":{"AnaID":231134,"PubliDate":2012,"Pagination":null,"XtraPublOfAnaID":null,"ISBN":null,"Volume":"117","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":90908,"SerRR":"Journal of Geophysical Research. American Geophysical Union: Richmond.  ISSN 0148-0227; e-ISSN 2156-2202","StandardTitleSer":"Journal of Geophysical Research","ISSN":"0148-0227","AbbrevSer":"J. Geophys. 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